Please recommend an android security suite

[Professor]

What kind of security? And why?

[Blast9]

anti virus and browser firewall mainly.

I am likely to use unsecured wi-fi access points/hotspots in my travels (hotels etc) to avoid roaming charges.

I have taken the usual precautions of pin number for the phone, and not likely to store any sensitive data on my phone anyway.

I will log into webmail via internet for emails... not really much more hassle than having it synced on my phone